Chemically heated tool for removal of paraffin

Patent · Tue Jul 20 04:00:00 EDT 1965

OSTI ID:7057695

Wayte, A E

Chemical heating equipment is used in heat treating oil well tubing to melt and remove paraffin, asphaltic deposits and other heat soluble hydrocarbons which tend to build up along the inner part of the tubing during the pumping of oil. In this tool, both the chemical and liquid are contained in a single chamber, with the chemical enclosed in a capsule which will dissolve after an interval of time. When the capsule dissolves, the chemical and water make contact with each other and produce chemical heat reaction in the chamber. A plurality of chemical capsules extend along substantially the entire length of the heat radiation against the oil well tubing. The gelatin capsules are filled with granulated caustic soda and aluminum alloy. The liquid in the chamber is water. (10 claims)

• Assignee: TUL; EDB-81-025488
• Patent Number(s): US 3195637
• OSTI ID: 7057695
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKALI METAL COMPOUNDS
ALKANES
ALUMINIUM
ASPHALTS
BITUMENS
CLEANING
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
FOSSIL FUELS
FUELS
HEATING
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXIDES
METALS
OIL WELLS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARAFFIN
PETROLEUM
RECOVERY
REMOVAL
SODIUM COMPOUNDS
SODIUM HYDROXIDES
TAR
WATER
WAXES
WELL CASINGS
WELLS